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Masses, sizes, and relative densities of objects in our Universe, and more. Credit: Charles H. Lineweaver & Vihan M. Patel, doi: 10.1119/5.0150209.
Lineweaver told Universe Today the inspiration for producing this graph came from watching steam coming out of a kettle and seeing the hot water vapor condenses into droplets. The middle strip in the middle section marked “BBN” or Big Bang Nucleosynthesis has atoms and elements, with the atomic densities of things like bacteria, fleas, humans, whales, the Earth, Sun and stars.
In it, we see main sequence stars, which when they run out of fuel, become white dwarfs, which eventually collapse into neutron stars, which eventually collapse into black holes. On this plot, black holes exist on the dark black line.
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